Performs a one sample Z test of a population mean using the given list of sample data and the population standard deviation. Hypothesized Mean is the population mean assumed in the null hypothesis. Tail has possible values "<", ">" , "≠". These specify the alternative hypothesis as follows.

"<" = population mean < Hypothesized Mean

">" = population mean > Hypothesized Mean

"≠" = population mean ≠ Hypothesized Mean

Results are returned in list form as {Probability value, Z test statistic}.